Needless to say, it is essentially impossible that any lifeform of that size (especially one that looks so similar to lizards on Earth) could survive on the freezing, toxic surface of Mars. Nasa's spacecraft on the planet have recently found conditions that suggest ancient microbial life was once possible - but that's not quite the same thing, unfortunately.

Undeterred, UFO Sightings speculates that Nasa might be involved right from the start:

"With water existing on Mars in small amounts, its possible to find such desert animals wandering around...although very rare mind you. Then again, is Nasa placing animals from tiny cyogenic chambers inside the rover onto the surface of Mars to conduct tests?"